Yeah, the title is pretty strong, but I am very upset at Bittorrent.com. I installed the latest version of the client just a week ago and it's not launched by default with windows on my machine. But I started noticing an increasing slowness of my computer while surfing on the web, or uploading code to our repositories. During the last days, I publically complained on irc.mozilla.org about the slowness of lxr.mozilla.org, but lxr.mozilla.org was really not faulty here. Bittorrent is the guilty one...

The last version not only creates c:\Program Files\Bittorrent but also c:\Program Files\Bittorrent_DNA and that beast uses your internet connectvity. Constantly and too much. A netstat -a could show me at least six or seven connections coming Brasil, Russia, blabla.

I immediately uninstalled the whole thing. Not only Bittorrent_DNA but Bittorrent with it. Because I just can't accept the fact my machine is used w/o my explicit permission as a network node to the point everyone can use my internet connectivity but I cannot use it myself anymore...

" You'll also notice that downloads of BitTorrent for Windows are accelerated with BitTorrent DNA, which stands for Delivery Network Accelerator. BitTorrent DNA is an enterprise-grade content delivery accelerator. It is distributed by your favorite websites and software companies to speed up your downloads by connecting to multiple sources of the same file. During and after each download, your computer helps distribute what you download. By giving and receiving in this way, your favorite websites operate more efficiently and provide a better and faster experience for everyone.

BitTorrent respects your privacy and only accelerates content that you want. It does not use your computer for unwanted data and does not negatively affect other applications that use your Internet connection. BitTorrent DNA contains no spyware, adware, or malware of any kind. " - Bittorrent web site

Calling a "network accelerator" something that kills the connectivity of all people running it (see the comments to that article)... Bittorrent should be sued for that. And I am not kidding